Securock® ExoAir® 430 Air Barrier System
Performance Built In



  • Documented System Performance
  • Efficient Installation
  • Predictable Outcome

Securock® ExoAir® 430 System – the only gypsum sheathing panel integrated with a pre-applied fluid air-barrier membrane. The panel brings two proven technologies together – USG’s Securock Glass-Mat Sheathing and Tremco’s ExoAir fluid-applied air barrier membrane into one panel that controls air, water and vapor in a very efficient way.  With document system performance that goes beyond industry requirements, the Securock® ExoAir® 430 System gives architects the confidence to specify and building owners the performance they demand.

When installed with the approved detailing accessories and in accordance with the Installation Instructions, the System is classified as to fire resistance, NFPA compliant, ABAA approved and listed with Progressive Engineering Inc.

The controlled factory application of the membrane to the face of the panel provides the assurance that only a traditional thick-film membrane can.  With the Securock® ExoAir® 430 System, application variability of the air barrier is no longer a concern; our controlled factory environment ensures proper mil thickness and membrane uniformity, which means no more job site rework and less job site waste. In addition, membrane adhesion is assured; it can’t wash off from rain or from improper sheathing preparation. And finally, the direct connection of the detailing sealants to the air barrier membrane gives you the visual verification of air barrier continuity.

The Securock® ExoAir® 430 System is a full system of products that have been tested for chemical compatibility to make the critical connections of the entire building.